Planar imaging in a mach 8 flow using sodium laser-induced fluorescence

A. P. Yalin; W. R. Lempert; M. R. Etz; P. J. Erbland; A. J. Smits; R. B. Miles

Planar imaging in a mach 8 flow using sodium laser-induced fluorescence

A. P. Yalin, W. R. Lempert, M. R. Etz, P. J. Erbland, A. J. Smits, R. B. Miles

Mechanical & Aerospace Engineering

Research output: Contribution to conference › Paper › peer-review

4 Scopus citations

Abstract

We report the use of sodium Laser-Induced Fluorescence (LIF) as a means to obtain planar images of mixing in hypersonic flow fields. Helium is used as a substitute for hydrogen for these studies, and is seeded with trace quantities of sodium. Initial experiments have been conducted with low mass flow rates of helium injected into the boundary layer and observed with planar laser-induced fluorescence. Images in the streamwise and plan view directions are taken at the 10 Hz repetition rate of the excitation laser. We present here the design of the sodium seeding apparatus, as well as a discussion of diagnostic issues such as quenching, saturation, and chemical reaction.

Original language	English (US)
State	Published - 1996
Event	Advanced Measurement and Ground Testing Conference, 1996 - New Orleans, United States Duration: Jun 17 1996 → Jun 20 1996

Other

Other	Advanced Measurement and Ground Testing Conference, 1996
Country/Territory	United States
City	New Orleans
Period	6/17/96 → 6/20/96

All Science Journal Classification (ASJC) codes

General Engineering

Cite this

@conference{929d947ad27646ec9079b7239a98b84a,

title = "Planar imaging in a mach 8 flow using sodium laser-induced fluorescence",

abstract = "We report the use of sodium Laser-Induced Fluorescence (LIF) as a means to obtain planar images of mixing in hypersonic flow fields. Helium is used as a substitute for hydrogen for these studies, and is seeded with trace quantities of sodium. Initial experiments have been conducted with low mass flow rates of helium injected into the boundary layer and observed with planar laser-induced fluorescence. Images in the streamwise and plan view directions are taken at the 10 Hz repetition rate of the excitation laser. We present here the design of the sodium seeding apparatus, as well as a discussion of diagnostic issues such as quenching, saturation, and chemical reaction.",

author = "Yalin, {A. P.} and Lempert, {W. R.} and Etz, {M. R.} and Erbland, {P. J.} and Smits, {A. J.} and Miles, {R. B.}",

note = "Publisher Copyright: {\textcopyright} 1996, American Institute of Aeonautioj and Astronautics, Inc.; Advanced Measurement and Ground Testing Conference, 1996 ; Conference date: 17-06-1996 Through 20-06-1996",

year = "1996",

language = "English (US)",

}

TY - CONF

T1 - Planar imaging in a mach 8 flow using sodium laser-induced fluorescence

AU - Yalin, A. P.

AU - Lempert, W. R.

AU - Etz, M. R.

AU - Erbland, P. J.

AU - Smits, A. J.

AU - Miles, R. B.

PY - 1996

Y1 - 1996

N2 - We report the use of sodium Laser-Induced Fluorescence (LIF) as a means to obtain planar images of mixing in hypersonic flow fields. Helium is used as a substitute for hydrogen for these studies, and is seeded with trace quantities of sodium. Initial experiments have been conducted with low mass flow rates of helium injected into the boundary layer and observed with planar laser-induced fluorescence. Images in the streamwise and plan view directions are taken at the 10 Hz repetition rate of the excitation laser. We present here the design of the sodium seeding apparatus, as well as a discussion of diagnostic issues such as quenching, saturation, and chemical reaction.

AB - We report the use of sodium Laser-Induced Fluorescence (LIF) as a means to obtain planar images of mixing in hypersonic flow fields. Helium is used as a substitute for hydrogen for these studies, and is seeded with trace quantities of sodium. Initial experiments have been conducted with low mass flow rates of helium injected into the boundary layer and observed with planar laser-induced fluorescence. Images in the streamwise and plan view directions are taken at the 10 Hz repetition rate of the excitation laser. We present here the design of the sodium seeding apparatus, as well as a discussion of diagnostic issues such as quenching, saturation, and chemical reaction.

UR - http://www.scopus.com/inward/record.url?scp=84983184566&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84983184566&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:84983184566

T2 - Advanced Measurement and Ground Testing Conference, 1996

Y2 - 17 June 1996 through 20 June 1996

ER -

Planar imaging in a mach 8 flow using sodium laser-induced fluorescence

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